Solve the problem.Assume that the volume of Earth is5 × 1014 cubic meters and the volume of a bacterium is2.5 × 10-16 cubic meters. If Earth could be filled with bacteria, how many would it contain?
A. 5.0 × 1031 bacteria
B. 2.0 × 10-30 bacteria
C. 2.0 × 1030 bacteria
D. 5.0 × 10-31 bacteria
Answer: C
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The floor of a lake slopes downward in a straight line. The depth 21 feet from shore is 18 feet. What is the depth 35 feet from shore? ?
A. 40.83 feet B. 30.12 feet C. 30.00 feet D. 40.95 feet
Use the brute force algorithm to find a minimum Hamilton circuit for the graph. Also, determine the total weight of the minimum Hamilton circuit.
A. Minimum Hamilton circuit is A ? B ? E ? D ? C ? A; weight = 25 B. Minimum Hamilton circuit is A ? B ? E ? D ? C ? A; weight = 24 C. Minimum Hamilton circuit is A ? C ? D ? B ? E ? A; weight = 25 D. Minimum Hamilton circuit is A ? B ? C ? D ? E ? A; weight = 28
Multiply.(3a - 4)2
A. 9a2 + 16 B. 3a2 - 24a + 16 C. 9a2 - 24a + 16 D. 3a2 + 16
Solve the problem.The sum of a number and 3 times its reciprocal is -4. Find the number.
A. -1 B. -4 or 1 C. -1 or -3 D. 1 or 3